Sztekhol is a high-tech enterprise specialized in LED injection module for 10 years. Our product is used in the advertising signage system. With most cost performance in Shenzhen Sztekhol executes ISO quality management system strictly, CE, ROHS, BIS GS, UL, 3C and other international and domestic security certifications. 80% products exported to the Asia ,Europe , the United States ,and other regions ;.We are one of the largest led injection module manufacturers. Sztekhol has a strong R & D capability, high production capacity and experienced employees. The company self-produce LED Chip to ensure long-term stability and same color temperature and performance. Company purpose: efficiency is money, quality is life.